LONDON – Some beef lasagna products recalled from British stores contained more than 60 percent horsemeat, U.K. food safety authorities said Thursday.

It was the latest revelation in a growing scandal surrounding the use of horsemeat and the mislabeling of meat products in Europe.

Frozen-food company Findus recalled the beef lasagna meals earlier this week after French supplier Comigel raised concerns that the products didn’t “conform to specification.” The U.K. Food Standards Agency said the lasagnas were tested as part of an ongoing investigation into mislabeled meat.

Already this month, millions of burgers have been taken off shop shelves as it emerged that beef products from three companies in Ireland and Britain contained horse DNA.